Install most chroot packages in one ${LH_APT} call (Closes: #475739)

This patch installs (almost) all chroot packages by queueing the package
names into a single file and then installing that. It depends on my
previous patch to install local packages by using an APT mirror.

This speeds up image build causes even greater speedups once more packages
adopt triggers.

(Packages installed by debconf preseeding are not touched, nor are packages
installed by tasks.)

1 files changed, 9 insertions, 25 deletions

diff --git a/helpers/lh_chroot_local-packageslists b/helpers/lh_chroot_local-packageslists
index ac21f09..8a1bef0 100755
--- a/helpers/lh_chroot_local-packageslists
+++ b/helpers/lh_chroot_local-packageslists
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# lh_chroot_local-packageslists(1) - install local packages lists into chroot
+# lh_chroot_local-packageslists(1) - queue install of local packages lists into chroot
 # Copyright (C) 2006-2008 Daniel Baumann <daniel@debian.org>
 #
 # live-helper comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
@@ -18,7 +18,7 @@ do
 done
 
 # Setting static variables
-DESCRIPTION="install local packages into chroot"
+DESCRIPTION="queue install of local packages lists into chroot"
 HELP=""
 USAGE="${PROGRAM} [--force]"
 
@@ -28,7 +28,7 @@ Arguments "${@}"
 Read_conffile config/all config/common config/bootstrap config/chroot config/binary config/source
 Set_defaults
 
-Echo_message "Begin installing local packages lists..."
+Echo_message "Begin queueing installation of local packages lists..."
 
 # Requiring stage file
 Require_stagefile .stage/bootstrap
@@ -44,32 +44,16 @@ Create_lockfile .lock
 
 if ls config/chroot_local-packageslists/* > /dev/null 2>&1
 then
-	# Restoring cache
-	Restore_cache cache/packages_local-packageslists
-
-	for PACKAGESLIST in config/chroot_local-packageslists/*
+	for PACKAGES_LIST in config/chroot_local-packageslists/*
 	do
 		# Generate package list
-		Expand_packagelist "$(basename ${PACKAGESLIST})" "config/chroot_local-packageslists" "${LH_BASE:-/usr/share/live-helper/lists}/lists" > chroot/root/"$(basename ${PACKAGESLIST})"
-
-		# Installing package list
-		case "${LH_APT}" in
-			apt|apt-get)
-				Chroot "xargs --arg-file=/root/$(basename ${PACKAGESLIST}) apt-get ${APT_OPTIONS} install"
-				;;
-
-			aptitude)
-				Chroot "xargs --arg-file=/root/$(basename ${PACKAGESLIST}) aptitude ${APTITUDE_OPTIONS} install"
-				;;
-		esac
-
-		# Removing package list
-		rm -f chroot/root/"$(basename ${PACKAGESLIST})"
+		Expand_packagelist \
+			"$(basename ${PACKAGES_LIST})" \
+			"config/chroot_local-packageslists" \
+			"${LH_BASE:-/usr/share/live-helper/lists}/lists" \
+				>> chroot/root/chroot_packages
 	done
 
-	# Saving cache
-	Save_cache cache/packages_local-packageslists
-
 	# Creating stage file
 	Create_stagefile .stage/chroot_local-packageslists
 fi